Oat Flour (Best Option)
1:1 (1 cup oat flour per 1 cup all-purpose flour)Oat flour works well because it contains enough starch and fiber to bind ingredients similarly to all-purpose flour, contributing to the chewy texture typical of energy balls. The mild, slightly sweet flavor complements most energy ball recipes without overpowering other ingredients.
When using oat flour, ensure it is finely ground to avoid a gritty texture. Because it lacks gluten, the binding relies more on sticky ingredients like nut butters or syrups, so maintaining those proportions is important.
Compared to all-purpose flour, oat flour produces a slightly denser and moister energy ball but preserves the overall chewiness and structural integrity, making it the best single substitute.